News Archive
Expert Electronics News !!!
Hi everyone!
We would like to share with you a review from a SunSDR2 DX user:
At the beginning of January there was a grand opening of the collective radio station of Stupino R2HX (former callsigns UA3KRO, UK3DAQ, UZ3DWR, RK3DWR). At the station there are theoretical and practical classes to attract young people to radio sports - teaching the basics of communication (analog and digital), soldering and designing skills, CW operation. Club members actively participate in Russian and world competitions and memorials, defending the honor of Stupino district of Moscow region.
At the very beginning of our path to organize a collective radio station, we faced an important question - what short-wave transceiver (the heart of the Club) to buy for the station? There were several criteria:
1. The device should be reliable, well-proven in the radio amateur environment.
2. The transceiver must be new.
3. The presence of panorama and waterfall is mandatory.
4. A built-in sound card for FT8 operation.
5. Ability to organize remote operation.
6. Availability to control an external PA and tuner.
7. Output power of HF transmitter - 100W.
Having analyzed the market (including proposals for parallel import) we realized that the SunSDR2 DX transceiver not only meets all our requirements, but also has on board VHF, which greatly expands its capabilities and relevance to the collective station. In fact, we have a multifunctional (multi-band, multi-mode) modern device, which is just right for training needs (due to the gorgeous panorama and a huge number of program settings of the signal) and comfortable participation in contests (which was confirmed by the recent Russian DX Contest).
Another advantage is the fact that the development of software and hardware is carried out by our engineers, making the product completely domestic, which cannot but cause pride in the process of making connections. Most of the correspondents note the gorgeous (studio) signal on transmission. For 3 months of work on this device (mostly on weekends) members of our Club have confirmed QSOs from more than 150 countries and territories of the world, and continue this exciting journey into the World of Radio, receiving only positive emotions from the use of transceiver SunSDR2 DX!
On behalf of the Club, I express our gratitude to the administration of Expert Electronics and personally to Roman Volchkov for flexible approach and discount!
With respect, the head of the collective radio station, Dmitry Kuznetsov (R2HW).
Expert Electronics News !!!
Hello everyone!
We would like to share with you what has been happening with Expert Electronics in recent years.
Our company is constantly growing and developing, since 2021 our staff has more than doubled. We have expanded the team of programmers by adding young institute graduates. Their first success after a year of internship was the RadioSync and RadioMacros utilities, which we published this autumn. Now, under the guidance of a senior programmer, they continue to gain experience and get into our programming technologies (yeah, yeah, they exist). Also, we have significantly expanded our staff of hardware designers, circuit designers and other specialists. You will be able to see the result of their work next year.
In 2017, our company started independent development of PiPlacer4 SMT pick and place machine and in 2021, we've launched its serial production (so far selling only in Russia). In 2023, we actively develop and improve in this business direction, aiming at a bigger machine next year. Mastering new business activities has helped us not only to stay alive in the current realities, but also to significantly increase the growth rate. Several PiPlacer4 machines are now used for our own needs when assembling printed circuit boards. Working in this area has allowed us to significantly expand our production capacity, rethink and raise competences in the design of complex block structures, including the development of new approaches in programming. Now we are able to transfer our positive experience in firmware design into ham radio.
Also in the second half of 2023, we started expanding our milling and metal processing capabilities to fully localize transceiver production in Russia. This is particularly relevant today, when demand for domestic equipment is growing and logistics from abroad are becoming less and less reliable (which we encountered in November this year). Now we have at our disposal several high-class milling centers (CNC machines) for metalworking, laser, lathe machines, etc. These production facilities allow us to speed up the development process, shortening the path from 3D model to serial product. The new unit/housing/heatsink is transferred to the workshop for production after development without delays and waits. The designer of the assembly can then immediately install it in the device and test the idea.
It is worth saying that working in several directions at once influences the company's activity in general and long-term planning in particular. So, the implementation of the new firmware into ExpertSDR3 will be carried out during April 2024, respectively the release of ExpertSDR3 with new firmware is postponed to May 2024. Further development of the Server and Client SW for ERS has been moved to Summer of 2024. New ExpertSDR3 with bug fixes will be released in 29th of December, we are working on it at the moment.
It should be noted that duplex is only one of many features that the new firmware will bring. For example, we’ve already implemented the DHCP net protocol, it greatly simplifies transceiver operation in the network. On top of this we’ve added service functions which automatically informs user about hardware malfunctions of certain important chips.
Among other innovations will be:
- extended reception range up to 800 MHz (for SS2DX/PRO/MB1);
- ALC;
- fundamentally new firmware structure, eliminating the existing defects in the operation of the program and transceiver.
Before release in May, we will again check the bug reports published on GitHub. This version of the program will be the final version 1.0 with new firmware and no bugs.
Thanks to everyone who read to the end, thanks for being with us!
Expert Electronics Team wishes you all Merry Christmas and Happy New Year!
73!
YAESU FT-710 FIELD HF/50MHz SDR Transceiver NEW !!!
 | FT-710 FIELD HF/50MHz SDR Transceiver | ||||||||||||||||||||||
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Specifications
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FT-710: Frequenzerweiterung Jetzt Möglich !!!
Es ist nun möglich, die Frequenzerweiterung auf dem FT-710 durch eine HW-Modifikation zu implementieren, indem die neueste Firmware installiert wird.
Il est maintenant possible d'implémenter l'expansion de fréquence sur le FT-710 via une modification du HW en installant le dernier firmware.
Adesso è possibile implementare l'espansione di frequenza sull'FT-710 tramite una modifica HW avendo installato l'ultimo firmware.
NEW MICROSET POWER SUPPLY !!!
NEW YAESU FTM-500DE !!!
| FTM-500DE 50W, C4FM/FM, 144/430MHz | ||||||||||||||||||||||||||
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Specifications
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NEW KENWOOD RADIO !!!
SunSDR2 DX der 5. Generation jetzt da !!!
- Redesigned heatsink, with thinner and more frequent gills for higher effectiveness
- Improved temperature sensor placement for more accurate temperature readings
- Improved TX IMD3 up to ~37 dB across all HF bands, with 100W output power
- 6M output power have been increased up to 80W
- Improved SDR PCB protection from cross-talks. Improved protection for the supply chain
- Added ferrite bead on the flex-cable connecting PA and SDR PCBs, for more stable operation with external ATU
- Added filtering of the headphones' connector
- Slight improvement of the RX path
- Redesigned TX filter of the DAC chip, which provides better linearity of the TX signal
- Redesigned band pass filter on the PA input, which improves linearity of PA operation
- Improved structure of 160, 6M TX filters
- RX/TX switching node on PCB is more resilient now
Preis 2550.- CHF
End of Production FTM-400XDE and FT-818ND
Please be informed that the production of the FT-818ND and FTM-400XDE will be discontinued.
The decision has been forced due to difficulty related to the availability of some components.
Please be assured that we will continue supporting the existing owners of the FT-818ND and FTM-400XDE by providing the repair parts and some of accessories long after production has ended.